T; RADIO •) Vol 76 TELEVISI 1 k" AA and HO BBIES dio, television, HI Fl, ELECTRONICS ...

132 Pages·2017·16.5 MB·English

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AUGUST 1964
:> T;
RADIO
•) Vol 76
1
■dio, television,
TEA LA EVISk" I
HI Fl, ELECTRONICS,
and HO BBIES AMATEUR RADIO,
POPULAR SCIENCE.
HOBBIES.
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Registered in Australia for transmission by post as a periodical
PAGE II RADIO, TELEVISION & HOBBIES AUGUST, 1964
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In radio communications, knowledge is progress. Only knowledge
can mean progress; in turn, progress itself maintains our present
high standard of living.
0|T- Radio-communications has its place in the community and the
expansion of this industry with the ever changing techniques
require specially trained personnel to keep the picture of progress
moving.
•« Mmm Hi
No one is in a better position to advance with this progress than the
Si trained technician.
The Marconi School of Wireless has combined training facilities
with the most up-to-date methods to ensure that every graduate
has the knowledge necessary to become thoroughly competent in
this field.
1XA
MARCONI Please send me without obligation your prospectus.
FILL IN AND POST
NAME
COUPON TO-DAY TO
ADDRESS
A
or
MARCOKI
MARCONI SCHOOL OF WIRELESS
Call, write or p/tone-
SYDNEY SCHOOL OF Conducted by:
47 York Street 20233 AMALGAMATED WIRELESS (AUSTRALASIA) LIMITED
WIRELESS
{Incorporated in New South Wales)
Printed and published by Sunqravure Pty. Limited, of Mentmoro Avenue, Rosebery at Mentmore Avenue. Rosebery.
AUSTRALIA'S NATIONAL ELECTRONICS JOURNAL
RADIO, TELEVISION and HOBBIES
ABC CERTIFIED CIRCULATION IN EXCESS OF 42,000
Volume 26, Number 5 August, 1964
Editor:
O COMMUNICATION PROBLEM NEVILLE WILLIAMS
M.I.R.E.I. (Auit.) (VK2XV).
'T'HE electronics industry, largely a product of Technical Editor:
communications research, is seemingly and PHILIP WATSON (VKIZPW}
ironically facing a communication crisis. This A.M.I.R.K.I. (Aurt.).
| has nothing to do with interplanetry space but Technical Staff:
concerns the more fundamental problem of com- JAMIESON ROWE
municating directly, man-to-man. B.Sc. (Tech.) Crod. I.R.E.E. (Auit.)
As the science of electronics has expanded into KEITH JEFFCOAT (VK2BK)
KEITH WOODWARD (VK2ZAU)
other fields, its engineers have become progres-
JOHN DAVIDSON (VK2tJE)
sively more estranged, one from the other, in
ROBERT FLYNN
both knowledge and idiom. It is becoming in-
Advertising:
creasingly difficult for a specialist in one aspect
SELWYN SAYERS, Mgr.
to keep up with developments in another, even
BILL SUMMONS, Rep. Sydney
though the electronic implications may be quite GIL O'NEILL, Rep. Melb.
important to him.
Then too, advancing techniques have opened Circulation;
W. CUMMING, Mgr.
the gaps between the engineers who originate
equipment, the technicians who maintain it and Subscription Rates:
the non-electronic people who may have to use it on a day-to-day basis. A C'wcallh, EIJI, N. Guinea,
full exchange of information in both directions is essential in the interests United Kingdom and N.Z., £A2 p.a.
of efficiency and further development. British Dominions .£A2 p.a.
foreign £A2/10/- p.e.
The ever-increasing quantity of technical information which thus has
to be originated, communicated and assimilated is a huge problem in Editorial Offices;
12th Floor, 215-243 Jones St.,
itself. The volume of printed material has long since submerged even the Broadway, Sydney. Phone 2-P944.
most avid readers. Ext. 2S11, 2525-6-7.
However, it is being complicated by another related problem which Advertising Offices;
is no less important. Concerned as I am, with technical literature, I can't Blh Floor, 215-241 Jones Sl
Broadway, Sydney. Phone 2v- 0(44.
escape the conviction that preoccupation with the subject is causing many,
Ext. 2911, 2508. 2510.
these days, to ignore the time-honoured art of expression. Skilled at their
own technical level, they seem chronically unable to write anything resemb- Circulation Dept.:
9th Floor, 235-241 Jones St.,
ling good, well punctuated, well composed English. What is more, they Broadway, Sydney. Phone 2-0944.
appear to attach little importance to the fact. Ext. 2505, 2509.
Many such people must obviously have passed final examinations at Postal Address;
tertiary level and one can only assume that they did so because the examiner Bex 2721, G.P.O., Sydney. (Re
technical queries, see "Answers
knew exactly what they were trying to say and marked their papers To Correspondents" page.)
accordingly. But what can get by on this basis may well be jumbled jargon
Melbourne Office;
to someone unfamiliar with the subject.
m^Uttle Collins It. Phene
It is quite wrong to regard speech and the written word as a super-
fluity, belonging to the literary arts. These are important mental disciplines
Cover Picture:
and they are vital to human communication. As I remarked earlier, the
One of two Target Acquisition
science of electronics is complex enough, without the further complication
Aids at the tracking station,
of workers who cannot express their thoughts clearly.
Carnarvon, Western Australia.
Used to direct precision track-
ing equipment, each uses 18
crossed dipoles in tour quad-
rants. The outputs of the quad-
rants are phase compared to
produce an error signal which
is used to bring the antenna
into coincidence. Beam width
is about 20 degrees in azimuth
In This Issue:
and somewhat tan-shaped in
elevation The station is con-
Piratei of the Air Waves 4 A Photographic Timer 72 trolled by the Australian Dept.
TV Mast on the Peat 7 A Reader Built It 79 at Supply for the National and
Medical Magnets 9 Let's Buy An Argument 80 Aeronautical Space Adminis-
Checking Computer Errors .... 11 Audio Topics 84 tration, U.S.A. It is maintained
and operated by Amalgamated
Gas Chomalography 12 Classical Reviews 87
Wireless (Australasia) Ltd.
Review—European Colour TV. . 17 Documentary Records 91
Intenlele Dlitrlbulors:
Review—CRT Photography ... 19 Variety Fare . . 93
v Distributed In N.S.W. by Sungreyure Pty.
Scientific, Industrial News .... 21 Trade Reviews, Releases .'... 105 Ltd., Mentmore Avenue, Rotebery,
N.S.W.; In yiclerle by Sungrevure Pty.
Aerials For 52, 144MC 28 Amateur Band News, Notes ... 109 Ltd.. 392 Little Collins St.. Melbourne;
Vibrate, Tremolo 35 Listening Around the World .. 117 In South Austrelle by Sungrevure Pty.
Ltd., 104 Currle St., Adelaide; In Weitern
The Serviceman Who Tells .... 44 Answers To Correspondents . . . 121 Ausfrallo by Western Press; In Queens-
lend by Gordon end Gotch
The Answer Man 49 Technical Book Review 125 (A/eiia) Ltd.; In New Zee-
Basic Radio Course 53 Classified Advertising 127 lend by Truth (N.Z.) Ltd; In
Tetmanla by Davles Bros. g
Tachometer Plus Dwell Meter. . 64 Index to Advertisers 128 Ltd.; "Mercury," Hobarl. •
Radio, Television & Hobbies, August, 1964
INSTROL-
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NOS. 106 AND 107 COMBINED
STEREOPHONIC AMPLIFIER-TUNERS
No. 106 "New Look" case and engraved label
This outstanding design is the result of a combination
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and 107 incorporates the main call signs from all States
plus Kilocycles. The "New Look" case features a smart,
glossy, smooth hood with rounded corners. The body
of the case is the latest baked wrinkle finish enamel.
Price:
Complete Kit of Parts £50/10/-
Built and Tested £60/18/-
(Deduct £3 if outside case not required.)
If required in "Standard" case with anodised label,
deduct £2/5/-.
SPECIAL PARTS AVAILABLE SEPARATELY No. 107 with "Standard" case and anodised label
"New Look" Box, chassis, panel and brackets £6 0 0 The latest Playmaster design, which is virtually a com-
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Standard Box, chassis, panel and brackets . . £4 12 0 No. 2 Tuner.
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De Luxe Etched Label (gold/black letters) .. £2 5 0 Complete kit of parts £40 18 0
(Postage 1/- extra) Built and tested £51 5 0
Anodised Label (gold/black letters) £1 8 0 Extra for "New Look" case and engraved
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Set of 6 brown/gold knobs £1 0 0 Extra for 2 Magnavox Electrostatic
(Postage 1/- extra) Tweeters with associated parts (not
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instructions, back plate, etc £1 15 0 (For cabinet mounting, deduct £2 if ouside case not
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A Complete range of
INSTROL - PLAYMASTER
THE INSTROL PIiYMASTER
HI-FI STEREO EQUIPMENT
PROGRAM SOURCE No. 2 TUNER
Price: Kit of Parts £16/18/0.
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Instrol-PIaymaster offers you a complete
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EVERYTHING FOR THE HI-FI ENTHUSIAST
INSTROL-PLAYMASTER GUITAR AMPLIFIER
*. TV 4 H., October. 1962 • January, 1963
A magnificent 28 watt twin channel All parts are available separately.
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guitar amplifier (overseas it would Cad plated and passivated drilled
be described as 60 watts), with out- chassis £2/15/10 (Add postage 6/-)
standing tonal quality. Available as Anodised label — gold with black
letters £1/7/6 (Add postage I/-)
a kit to build yourself or wired and
Carrying Case with 2 or 3-spcakcr
fully tested. In beautifully finished
baffle. £10/4/- (Add postage 14/-)
carrying case, with reverberation,
Complete Kit of parts with MSP12in
vibrato, and two high quality and Goodmans 8in speaker,
speakers (MSP 12PQB and Good- £90/6/10.
mans Twinaxiette). Built and Tested . . . . £102/6/10
1 Radio, Television 4 Hobbies, August, 1964
SLIMLINE SPEAKER
ENCLOSURE
THE NEW 8
INSTROL
An anu/inply low priced, highest quality speaker enclosure
to suit all makes of local and imported Sin speakers. Ideal
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such as Rola, Wharfedale. MSP. Goodmans, Magnnvox, etc.
ScientificaMy designed on the D.P. (Distributed Port) prin-
ciple. this new enclosure not only reproduces with remark-
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Slimline—only 6in deep, 14in wide and 24^in high (including
base). It may be adapted to suit smaller speakers by using
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built and polished.
jf- PRICE: —
' _ ^ - Complete kit of parts, £6
(Teak 12/- c\lru»
w* Built and polished £10/15-
\ (Teak 12. • extra)
\ (Po.slaue 14'- extra in N.S.W.,
\ Olrt.- Vic. and Tas. 2fl - other
Stales and Si.t#.)
EASY TO ASSEMBLE . . . Make your
own hi-fi cabinets and save £ £ £'s
So easy a child could manage it. The Instrol way — a new then wipe off the filler paste. (?) With a brush, apply ? coats
simplified method of assembly, A hammer, screwdriver, one of Eslapol or similar. For a few shillings wc can supply a polish-
evening of your time, and you can make your own cabinets for ing kit complete with simple instructions, sufficient to polish a
less than half cost. K-its arc absolutely COMPLETE, with easy complete setting of cabinets. Finishes available arc Queensland
to follow instructions, nails, screws, grille cloth, fell, moulding, Maple, Walnut. Rosewood. Scandinavian oiled leak. etc. Instrol
gold trim, le^s. castors, slays, etc. All parts are precision cut.
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(OP P. OH ACE II ll OS.) PHONE: [phone]
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□ ln5lrol-Pla>maslcr HI-PI. O Instrol Metalwork.
□ A.IC.li. Headphones. G Sams Books.
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ADDRESS
(Place X in squate)
Radio, Television & Hobbies, August, 1964
Pitta TES OF TOE
ant waves
Piracy of radio waves is not new but international waters have never
n been so infested with immobile transmitter ships as they are now. Radio
Sud is off the the southern coast of Sweden. Radio Veronica is off the
Dutch coast near Scheveningen. The American ship, Courier, is in the
\ ' east Mediterranean beaming broadcasts into Communist bloc countries.
Radio Caroline is operating off the English east coast, near Felixstowe.
The Dutch are becoming even more ambitious; a businessman from
The Hague is going ahead with plans to launch a pirate TV station from
'Wj ---l-v V international waters off the coast of Holland.
h • By John Pawsey
. .1
FIVE miles off Felixstowe. on the blustery east coast of England, an ugly
tramp ship sits squat in the water, rising and falling with the swell of the
North Sea. It has been there since Easter, anchored firmly to the sea bed; if all
goes well, it will be there for several years to come. It bears the name Caroline,
a crew of 10 and two other men who have nothing to do with the running of
./
ship: who still have to learn to talk about Caroline's port and starboard rather
than her left and right.
One is a "disc jockey," the other his engineer.
Caroline is Britain's first commercial radio station, and a pirate radio
Tfce A4.V. Caroline is shown above
station at that. The 763-ton ship, registered in 1931, with an exemplary record
at fhe free port ol Greenore, In
as a passenger vessel with a Danish shipping line before it became a floating
Southern Ireland. radio station, is nearly two miles outside British territorial limits. It has to be
Bottom; Caroline on its way to ill
that way.
broadcasting position oil the Cnglish
Caroline has been dubbed a pirate ship because, under British broadcasting
east coast. regulations, the B.B.C. has sole rights for broadcasting in Britain. The corporation
holds the only broadcasting licence. Any further licences have to be obtained
from Britain's Postmaster-General and he, backed up by the report of the
Pilkington Committee appointed to review British broadcasting, is not likely to
grant any.
4* OTHER COUNTRIES' PROBLEMS
Britain is not alone in having regulations — or problems — of this kind.
Pirate radio stations outside national jurisdiction have slipped onto the air in the
past few years to aggravate authorities in Holland, Belgium, Denmark and Sweden,
/ And the Americans have had a ship — the Courier — anchored in the eastern
4 Mediterranean for 14 years, beaming Voice of America broadcasts into Com-
munist bloc countries.
At the time that Radio Caroline took to the air, listeners in both Holland
and Sweden were able to tune into their own pirate radio stations. Off Schevenin-
gen on the Dutch coast. Radio Veronica has a regular following and outside
Swedish territorial limits. Radio Sud has been going since December, 1958. Sud
now broadcasts 21 hours a day. A predecessor to Radio Sud was Radio Nord
broadcasting off the Swedish coast from a vessel named the Bon Jour. Radio
Ronan O'Rohilly-, the man behind Nord was financed by four Texas oil millionaires and was on the air round the
the Caroline project. O'Rohilly and clock between March 18, 1960, and June. 30, 1962. The ship flew the Nicaraguan
his lather appear to be upholding flag. Both Radio Nord and a similar ship operating off Denmark came off the air
the traditional Irish attitude ol after the Scandinavian Parliaments passed anti-Pirate legislation.
being "agin the govlnmenll" But the most ambitious of all the pirate projects so far is one which is
scheduled to make its debut soon about four miles off Noordwijk, 40 miles north
of The Hague. A businessman from The Hague called Pict Brandel is going
ahead with plans to launch a pirate TV station.
If Radio Caroline has stirred up controversy in Britain, Brandel's plan has
prompted near-panic measures from Dutch authorities. A second television channel
is in an experimental stage in Holland but it is not to be commercial. The Dutch
Parliament thrashed out this issue in heated debate last year. Despite this
decision, Brandel's pirate TV station is not short of support from potential
advertisers. Some have already placed orders for commercial films with a film
studio in the Amsterdam suburb of Duivendrecht.
LEGS ON THE SEA BED
Brandel's plan is to erect a steel platform, 90 feet by 55, on six legs on the
bed of the North Sea off Noordwijk. On this, a 240-foot transmission tower is
to be placed. He has ordered the platform from the Verolme United Shipyard
in Cork, Southern Ireland, not far from the yard where the Caroline was fitted
out, and RCA, the American electrical concern, has received his instructions to
supply transmitters and studio equipment.
The steel island will be manned in shifts by some 50 German engineers.
The programs in video tape form will be flown out by helicopter. Brandel's studio,
where the programs are taped, is in Amsterdam. He's not saying exactly where,
in reply, the Dutch Government offered Brandel the equivalent of a first option
should Dutch television start commercial channels. When he intimated he was
still going ahead with his off-shore television station—it has the resounding
4 Radio, Television & Hobbies, August, 1964
name of NV Reclaim Exploitatie Maats-
chappij—the Government looked for
sterner measures. They started to pre-
pare a bill which would, in effect, bring
the whole of the Continental shelf off
the Dutch coast under the jurisdiction
of Holland, instead of merely the three-
mile limit as at present.
With the Dutch Government lined up
against him. Brandel appears to have
little chance of success. But if he is
as resistant to pressure as the owners of
the Dutch pirate radio station, Radio
Veronica, REM-TV has a good chance
of getting on the air and reaching the
estimated 3,000,000 television sets in
Western Holland, an area that includes
the major cities of Amsterdam, Rotter-
dam, The Hague and Utrecht.
Radio Veronica has been transmitting
—-
since 1961 and now is one of the most
popular stations on Dutch radio. But to
get on the air and stay there required an
operation reminiscent at times of an un-
derground movement.
The equipment of the Veronica was
put together in workshops and garages
scattered throughout the country. Post
office investigators carried out raids on
suspected premises and several times
confiscated transmitter equipment. Even
when the former German lightvessel was
equipped and on the air, Dutch customs
frequently intercepted the taped pro-
grams on their way to the ship by
boarding the fishing vessel carrying them Fronting the Caro-
as it put out from Scheveningcn. line's control pan.
el, turntable and
STILL GOING tape player is
Swedish engineer
But Radio Veronica survived this and,
O v e Sjorsirom.
today, the once ramshackle studio where
Through the glass
the broadcasts are taped is a modern
building housing the latest in broadcast- panel, Canadian-
born disc jockey
ing equipment. It stands in a narrow
Hilversum street behind the nylon stock- Simon Dee broad-
ing warehouse owned by its sponsors. casts to listeners
on a commercial
Verwey Brothers.
basis, competing
Whether Ronan O'Rahilly, the 23-
directly with the
year-old Irishman behind Radio Carol-
Government-back-
ine. and his string of backers and as-
ed BBC, Caroline
sociates that include his wealthy in-
dustrialist father and Jocelyn Stevens, is directed prim-
arily at an audi-
editor-in-chief of the glossy magazine
"Queen," can achieve the same success ence throughout $
London, the Home
depends to a great extent on any pres-
Counties and Cast
sure the British Government can exert
Anglia.
on potential advertisers and on the a.
Council of Europe.
The subject of pirate radio and tele-
vision stations is high on the' agenda of
matters to be discussed by the Council.
The Dutch Government has delayed O'Rahilly, pirate or crusader? The answer to this question is less urgent '
action on Radio Veronica until the Coun- than the problem ol controlling such activities. Too many "illicit" broad- \
cil gets round to the matter of pirate cast and television stations could bring chaos one step closer to the already
stations. jumbled airwaves,
The idea of commercial radio has been
circulating for years among British musi-
cians and businessmen. It took Ronan
O'Rahilly to do something about it. His
first task was to find backers. In this, he
admits he got some help from his father.
"It was both moral and financial," he
says. "He likes a gamble as much as I
do."
Spokesman for Caroline say that more
than a quarter of a million pounds ster-
ling have been found to launch the radio
station. It has come from American.
Swedish, Dutch, Irish, Swiss and Eng-
lish backers. Large commercial concerns
in the City of London are said to have
an interest.
Part of this went on buying the ship.
O'Rahilly got it from a Danish shipping
line which had been using it on a cruise
service round the Danish islands.
He didn't tell the shipping line that
n-Ji- > * IttCJ
BRITAIN'S he was going to use the ship for a pirate
radio station. "Of course, I was under no
top quality obligation to tell them. But I certainly
wasn't going to advertise my intentions
at that stage."
tJUUJUJ^ RECORDERS
The ship moved discreetly from Copen-
hagen into his father's port of Greenore
for fitting. Despite the fact that a 160-
now available in Australia.
foot wireless mast sprouted from the
deck, the emergence of the Caroline re-
This is good news for all tape mained unpublicised until just a few
recording connoisseurs. At last weeks before she was due on the air,
you can have the BRENELL when O'Rahilly gave the nod to his pub-
you've only read about—ttie licity men who launched a furious cam-
* ton 0™'*1*'' ""''"y paign. The publicity concern is the same
recorder that gives optimum
SyT* " as the one that handles pop singer, Cliff
fidelity—is perfect for all uses, Ricard.
including monitoring, echo O'Rahilly, meanwhile, was signing on
recordings, stereophonic equipment and staff. He has four disc
jockeys at the moment, an American, a
sound, and sound on sound.
0„l Canadian and two Englishmen. He has
a crew of 10, mainly Dutch and Swed-
ish, and the three engineers, led by a
Swede.
For enthusiasts, BRENELL decks He supervised the buying of much of
are available as separate units the equipment himself, on one occasion
i> . * with variety of heads for mono flying to Houston, Texas to bid for and
and stereo. Each deck accom- buy at below market price, the two 10-
modates up to four heads. kilowatt transmitters now operating on
the Caroline.
Caroline's passage of the first
few weeks has not been easy.
basic specifications
>'g2rs/ FOR ALL MODELS: The British post office cut off radio-
telephone communication with the ship
\ 4 record/playback speeds—1}, 3J, 7i, and messages from the Caroline have to
15 i.p.s. # 3 independent motors (cop- be re-routed through The Hague to Lon-
---\ stan drive-hysteresis synchronous) I don. After pressure from the British Gov-
^ reels up to 8i in. (3,600 ft. of D.P. ernment, Panamanian registration was
tape p'aXs ^or over ^ hours at 1{ withdrawn from the ship. State-
N. i.p.s.) t interlocked controls $ pause ments have been made in the House
.^<JV control # digital rev. counter it super- of Commons about "dissuading advertis-
' V ^\ impose switch it fast rewind in either ing interests from using these pirates"
O- « • \ direction (1,200 ft. in 45 sees.) instant and "considering legislation" to silence
stop without tape spillage it excep- Caroline. The company that controls the
NkBA ■' e o tionally low wow and flutter content broadcasting of gramophone records in
—below 0.05% at 15 i.p.s., 0.10% at Britain, Phonographic Performance Ltd.,
7i i.p.s., 0.15% at 3j i.p.s. and 0.25% attempted to seek an injunction against
the Caroline and its record resources of
some 12,000 discs, ranging from the
^P^^^BRENELL MARK 5 TYPE M
Beatles, through Porgy and Bess to Peggy
A development of Mark 5 Series 2, Lee and Lena Horne.
piving mixing, superimposing, monitor- ww-wwwwww-.www WW* WWW»WW*V .
. mg facilities. Two .amplifiers for record-
> This is primarily the story of one |>
. r^rtRlO\ ing and playback •— accurate level I pirate radio station—"Caroline.'' On il
^ meter^ ensures unvarying quality
II page 120 Art Cushen says that four i|
!; pirates are now in operation off the ^
BRENELL STB1/5/2 11 coast of Britain.
V'W^ ^ • V—' \ Incorporates twin recording amplifiers, But all this so far amounts to "hot
Wm""* * | F j-rfH tw'n replay preamplifiers, half track air." Under present legislation both
NxVVa ivht' maolfn-otr/asctekr eoa nrde coqrduianrgt erf-atrcailcikti es,s teprleuos British and international, the Caroline is
almost impregnable. Her Achilles heel, if
li facilities. Designed for use with all
she has one, is her need for advertising.
j| makes of high quality amplifying
British holiday resorts, numerous manu-
'I equipment.^ Ideal for incorporation in
facturers, and according to O'Rahilly,
"most of the large advertising agencies,"
- MONO/STEREO RECORDERS FROM £174/13/6 are showing more than academic in-
MONO/STEREO DECKS AVAILABLE FROM £51/19/7 terest.
"If we get advertising from half the
people who have contacted us,"
RCA OF AUSTRALIA PTY. LTD. O'Rahilly said, "we'll be able to keep
An Associate Company of Radio Corp. of America
afloat indefinitely." And Simon Dee, one
SSoollee SYDNEY: 221 Elizabeth Street. 61-8541. of the disc jockeys, backed up this senti-
DDiissttrriibbuuttoorrss:: MELBOURNE: 2 Stephenson Street, Richmond. 42-4586 ment by saying: "If we're not showing a
BRISBANE: 173 Ann Street. 2-7884 ^profit in six months a lot of us will want
PERTH; 280 Stirling Street. 28-1459 'to know why."
ADELAIDE; Newton McLaren Ltd. Leigh Street. 51-0111 But the real criterion is how many
people listen to Caroline. With a 100-
Hail the coupon below to your nearest RCA dealer for brochures giving details of all models.
mile radius from his transmitters,
O'Rahilly believes he can attract an
Please send me a detailed brochure on audience of up to 15,000,000 people.
Perhaps his best selling point is the
□ Model STB1
Nome ... ... - □ Mark 5 Type "M" story that a B.B.C spokesman haughtily
denied. There's a rumour about that the
□ Mark 5 Series 2
Address □ Decks most popular station with B.B.C em-
ployees during tea breaks or at slack
Tick as required
moments is 199 meters medium wave-
band — Radio Caroline!
RC.I25.l02g
Radio, Television A Hobbies, August, 1964
TV MAST
ON THE PEAT
To erect a huge, tubular television mast is difficult
enough without having, at the same time, to deal
with foundation problems in the way of peat, clay,
shale, coal seams and almost forgotten mine work-
ings. This is the story of how a British construction
company is tackling the job.
BRITISH Insulated Callender's Construction Company
Limited has been entrusted by E.M.I. Electronics Ltd.,
with the design, supply and erection of three new cylindrical
steel masts for the television services of the I.T.A. and
B.B.C. Work on the foundations for the first of these masts,
at Winter Hill, Lanes., is progressing satisfactorily in spite The site ol the mast showing the 30ft square excavation
of the unique problems posed by the nature of the site. 'or the mast base raft with a derrick crane and a mobile
It was known before the project was planned that crane in operation. The extent of the sleeper roads can
disused mine workings existed at this location at a depth of be seen and, on the far right, a sleeper road runs down
approximately 50 feet. Records indicated that the mine one ol the stay lanes to two completed anchor blocks.
had not been worked since 1896 and the National Coal The length ol the supporting cables will be apparent.
Board confirmed that future mining
four^s^ ileep 'and appro^
mately 6ft 6in in diameter, line them lLoowweerriinngg pprree--aasssseemmbblleedd sstteeeell rreeiinn-- AA ttrriiaall aasssseemmbbllyy ooff tthhee ffoorrmmwwoorrkk ffoorr
with precast concrete rings and fill with 'f0o'reci,nn9g bbaarr$s i'nnttoo oonnee oeff tthhee ftoouurr 5555"" tthhee 1'00"ft hkiigghh hhoollllooww rreeiinnffoorrcceedd ceoonn--
reinforced concrete to form columns. The "de"e"p *sh*a»f"t*s•. Fr<ou""r oof' tthheessee ssuuppppoorrtt ccrreettee pplliinntthh wwhhiicchh wwiillll ssuuppppoorrtt tthhee
bases of these columns would be con- tth"ee ccoonnccrreettee pplliinntthh.. mmaasstt..
structed on sound rock below the coal —
working level and the tops capped with a
slab 30ft square and 5ft 6in thick. The OOnnee ooff tthhee aann--
precast rings would remain "free" inside ec/h,oofr bblloocckkss wwiitthh
the shafts thereby ensuring that if hori- ttwwoo sfeettgs o0ff aann-.
zontal or vertical movement of the sur- cchhaorraaggee sstteeeellwwoorrkk
protruding. The
extension of the
neck of the block
is made necessary
by the excessive
depth of the peat.
The mast involved
here is 1000"
high but two
others, yet to be
erected, will ex-
tend to 1250ft,
being the highest
of their type in
the world.
exposing maintena^ to the ^ ^ ^ ^ ^
weather. necessary to extend the neck of the 12,000 railway sleepers were used and it
The anchor blocks for securing the anchorages so that the stay attachments is intended that these will remain in posi-
lower ends of stays have been designed protruded above the top of the peat. lion at the completion of the contract
in a conventional manner, using the solid Before any site work began extensive '0 form access roads across the peat for
ground below the peat to obtain the sleeper roads were laid along all stay maintenance work,
necessary passive resistance. Owing to the lanes and around the working areas " derrick crane with a 120 foot boom
excessive depth of the peat it became adjacent to the mast base. Approximately (Continued on page 11)
Radio, Television & Hobbies, August, 1964 7
TEL w N
/*OlA
SERVlCb
YOUR
INVESTMENT IN TELEVISION
COMPONENTS
PAYS OFF with TROUBLE-FREE
PERFORMANCE /
Be a Happy service-man! Rely on rugged ROLA TV COMPONENTS
tor your investment in belter service. Depend on ROLA's uniform high
"{ quality to turn your service calls into satisfied clients — with no call-
I L back worries! Throughout Australia ROLA distributors stock the com-
— ponents you need. Check your ROLA distributor today — look for
ROLA's "Red Box." This is the label to rely on for VERTICAL OUTPUT
TRANSFORMERS, BLOCKING OSCILLATOR and FLYBACK TRANS-
FORMERS, CHOKES and DEFLECTION YOKES. And for your con-
venience ROLA's standard prices for all States are listed below!
\
1
<oe COMPONENT PRICE LIST
r e

Verlical Output RETAIL 90 Horiiontal Output RETAIL
Transformor Transformer
TV124. 125. 126, 120, TV452-I. 452-3. 452-4,
. 130. 132, 133, 135, 454. 455, 456, 457.
137. 1381, 139, 140 46.0 458. 460 120.0
TV150. 151 38.6
110 Horiiontal Output
Blocking Otcillalor Transformer
Transformer TV 1514, 1520-1. 1520-2.
TV200. 201, 207, 208. 1522. 1523, 1524. 1525 120.0
210, Choke TV251 23.0 rvsooo 70.3
Power Chokes TV3010 88.6
TV30I. 302 42.6
rV3C6 23.6 90 Deflection Yoke
TV9I0, 911. 1300 160.0
70 Horitonlal Output
Transformer 110 OeBoction Yoke
IV459, 461 120.0 IVI412 182.0
TV4500 120.0 TVI811. 1917 140.0
ROLA distributors located in all TV areas throughout Australia carry
complete slocks of quality ROLA TELEVISION COMPONENTS. Remem
ber — lor your service needs rely on AUSTRALIAN-MADE ROLA
COMPONENTS
R OLA PECIAL r RODUCTS ,PT Y. LTD.
THE BOULEVARD, RICHMOND, VIC. N.S.W. CALTEX HOUSE, KENT ST, SYDNEY
42 3921 27 6147
8 Radio, Television & Hobbies, August, 7964